At increments of 10, starting at level 15, we should be able to share a link to Twitter, earning similar rewards as to when we share on Facebook. The levels required would be:
Note: Perhaps as a side rewards for level 15, the players would obtain a set of wings called "Feathered Wings". The wings would be the lowest level and stats, but it would be a great incentive to attesct more people to purchase the V.I.P options. Just a thought.